package com.cyq.day08;

public class Demo01 {
    public static void a(){
        System.out.println("进入方法b");
        b();
        System.out.println("退出方法b");
    }
    public static void b(){
        System.out.println("进入方法c");
        c();
        System.out.println("退出方法c");
    }
    public static void c(){
        System.out.println("进入方法d");
        d();
        System.out.println("退出方法d");
    }
    public static void d(){
        System.out.println("进入方法d");
    }

    public static void main(String[] args) {
        a();
        System.out.println(" ");
    }
}
